Home / 1,472.43-2,204.31-1,290.18

Finding the Fourth Proportional to 1,472.43, 2,204.31 and 1,290.18

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Solution

The fourth proportional to 1,472.43, 2,204.31 and 1,290.18 is: 1,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.43 : 2,204.31 = 1,290.18 : x
  2. Step 2: Convert to fraction form
    1,472.43/2,204.31 = 1,290.18/x
  3. Step 3: Cross multiply
    1,472.43x = 2,204.31 × 1,290.18
  4. Step 4: Simplify right side
    1,472.43x = 2,843,956.68
  5. Step 5: Solve for x
    x = 2,843,956.68/1,472.43
  6. Step 6: Final answer
    x = 1,931.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.